According to David Palmer's 2006 book, Parent's Guide to IQ Testing and Gifted Education, the average score for customary intelligence tests is 100 with a standard deviation of 15; approximately 50% of the population will score between 90 and 109 on a modern IQ test.
How long the decomposition of compostable plates takes is a question that many people might ask, and several factors influence what the answer is. Generally, if a compostable plate is placed in a commercial compost facility, it will take less than 180 days to completely decompose.
Newspaper: 2 to 4 weeks, can take longer in landfills due to lack of microbes; will decompose much faster when wet Sources: Pocket Guide to Marine Debris from The Ocean Conservancy (2004), How Long Does It Take Waste Materials to Decompose and âGarbage In, Garbage Out,â Audubon magazine, Sept/Oct 1998.